JPH03155807A - Connecting tool for picture frame member - Google Patents

Abstract

PURPOSE:To obtain the connecting tool whose structure is simple and in which the number of parts is small, by providing a detaining projecting part for inserting and attaching an inserting piece of a base plate and both projecting pieces of a a picture frame member in a position in which the other end part of a lever is positioned on the base part side of the inserting piece from the turning center axis of the lever in a state that it abuts on the reverse side of the picture frame member on the tip side of the inserting piece and pressed against the projecting piece. CONSTITUTION:In a groove part 3 of both picture frame members 2, both inserting pieces 13 of a base plate 12 are inserted, respectively from its end face. In this case, a lever 16 is set to an erect state, that is, a state that it is separated to some extent from the base plate 12. Subsequently, in a state that end faces of both the picture frame members 2 are butted, both the levers 16 are turned toward the tip side of each inserting piece 13, respectively by putting a finger, etc., on an operating part of the lever 16, and laid down. By following it, a detaining projecting part 21 is pressed against both projecting pieces 4 from the outside, but when an operating part 18 abuts on the picture frame member 2 in the end, the detaining projecting part 21 is positioned on the base part side of the inserting piece 13 from the turning center axis of the lever 16. In such a way, while preventing the turning of the lever 16 in the reverse direction, that is, in the detaining release direction, both adjacent projecting pieces 4 are inserted and held by each inserting piece 13 and the detaining projecting part 21, and both the picture frame members 2 are detained and connected vertically.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention provides a connection tool for picture frame members that connects a pair of picture frame members at a predetermined angle with their end surfaces abutting each other. In particular, it relates to a device in which locking is performed by a lever having an eccentric cam.

(Prior Art) As described in, for example, Japanese Unexamined Patent Application Publication No. 63-77409, there has been known a frame member coupling tool which locks the frame member using a lever having an eccentric cam. This connector vertically connects a pair of picture frame members, each having a groove on the back side and projecting pieces protruding from opposite sides of the opening of the groove, with their end surfaces butted against each other. However, there is an L-shaped connecting plate and a regulating plate whose both ends are inserted into the grooves of these picture frame members, a lever which is assembled to one end of the connecting plate, and a lever which is screwed to the other end of the connecting plate. It consists of screws.

Then, when this screw is screwed into one end of the connecting plate and pressed against the regulating plate located on the bottom side of the groove, the connecting plate is pressed against the projecting piece of the picture frame frame member due to the reaction, and this one end of the picture frame A connecting plate is locked to the frame member. In addition, when the shaft of the lever is inserted between the other end of the connecting plate and the regulation plate and the lever is turned so as to tilt down around the shaft, the protrusion of the eccentric cam around the shaft of the lever will move into the groove. At the same time as it is pressed against the bottom surface, the shaft of the lever is pressed against the connecting plate, and this connecting plate is pressed against the projecting piece of the frame frame member, and the connecting plate is locked with the other frame member. In this way, the same picture frame frame members are connected.

The regulating plate is used to prevent screws from coming into direct contact with the frame member made of aluminum, and to form a stopper that prevents levers that are not pivoted to the connecting plate from being removed.

(Problem to be Solved by the Invention) However, in the conventional configuration described above, in addition to the separate connecting plate and lever, a separate regulating plate is provided, so the number of parts is large and the structure is There are problems in that it is complicated, expensive, and the connection work is troublesome. Further, since the regulating plate, the connecting plate, and the shaft of the lever are inserted into the groove of the frame member, there is also a problem that the frame member cannot be connected unless the groove is deep to a certain extent.

The present invention aims to solve these problems, and has a small number of parts, a simple structure, low cost, easy and reliable connection work, and limitations on picture frame members that can be connected. It is an object of the present invention to provide a connector for a picture frame frame member that has a small amount of damage.

[Structure of the invention]

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a pair of picture frame members that have a groove on the back side and protrusions that protrude oppositely from each other on both sides of the opening of the groove. A pair of insertion pieces each inserted from an end surface of the picture frame member into a groove of the picture frame member are connected to each other at a predetermined angle with their end faces abutting each other. Consists of a board integrated at an angle, and a pair of levers each having one end pivotally attached to each insertion piece of this board with the rotation center axis direction being approximately perpendicular to the insertion direction of the insertion piece. Further, locking protrusions are formed on the outer circumferential sides of the pivoting parts of these levers to clamp both protrusions of the picture frame member together with the insertion piece of the board, and further, the locking protrusions: a position in which the other end of the lever is in pressure contact with the projecting piece, being located closer to the base of the insertion piece than the central axis of rotation of the lever, with the other end of the lever abutting the back surface of the frame frame member on the tip side of the insertion piece; It was established in

(Function) In order to connect a pair of frame frame members using the connector for picture frame frame members of the present invention, first insert both insert pieces of the substrate into the grooves of the same frame member from the end faces of the frame frame members, respectively. insert. Next, a pair of levers, each of which is pivotally attached to each of these insertion pieces, with one end thereof pivoted in a direction substantially perpendicular to the insertion direction thereof, are rotated toward the distal end side of the insertion piece. Accordingly, the locking protrusion on the outer circumferential side of the shaft attachment part of each lever comes into pressure contact with the protrusion on both sides of the opening of the groove of the picture frame frame member, but the other end of the lever finally touches the picture frame frame member. When the locking protrusion comes into contact with the back surface of the lever, the locking protrusion is located closer to the base of the insertion piece than the pivot axis of the lever. As a result, while preventing the lever from rotating in the opposite direction, both protruding pieces of each picture frame frame member are pinched by each insertion piece of the board and the locking protrusion of each lever, and both R edge frames The members are locked and connected at a predetermined angle with their end surfaces abutted against each other.

At this time, as the lever rotates, the locking protrusion moves toward the end surface of the frame frame member, so this frame frame member is pressed toward the other frame frame member. The end faces of the picture frame members are surely butted against each other.

(Example) Hereinafter, the configuration of an example of the present invention will be described based on the drawings.

1 is a picture frame, and this picture frame 1 is, as shown in Fig. 1,
It is assembled into a rectangular shape, and each of its four sides is 4.
It is formed by connecting two linear picture frame members 2.

These picture frame members 2 are made of extruded aluminum or the like, and both end faces are cut at an angle of 45° with respect to the axial direction. A groove 3 is formed on the back surface side (upper side in FIGS. 3 to 5) of the picture frame member 2, and is open to the back surface and extends to both end surfaces of the frame frame member 2. Projecting pieces 4 are formed on both sides of the opening 3.

Both of these protruding pieces 4 are located on the same plane and protrude in opposite directions.

Reference numeral 11 denotes a connecting tool, and this connecting tool 11 vertically connects a pair of adjacent picture frame members 2 with their end surfaces facing each other. Next, the configuration of this connector 11 will be explained.

Reference numeral 12 denotes a substrate, which is integrally formed of iron or the like into an L-shaped flat plate, and has insertion pieces 13 at both ends. These right-angled insertion pieces 13 are each inserted into the groove 3 of the picture frame member 2 from its end face. The tip of each insertion piece 13 has a semicircular shape for easy insertion. Furthermore, a bearing piece 14 is vertically cut and raised from the inside at the center of each insertion piece 13 . Note that a round hole 15 is formed in the inner corner of the substrate 12.

Reference numeral 16 denotes a lever, and the lever 16 is integrally formed of iron or the like in a substantially flat plate shape, and has a bearing portion 17 formed on one end side and an operating portion 18 formed on the other end side. Furthermore, a cut groove 19 into which the bearing piece 14 of the base plate 12 is inserted is formed on one end side of the lever 16, whereby the bearing portion 17 is divided into two parts. Then, the support shaft 2 is attached to the bearing portion 17 and the bearing piece 14.
0 is rotatably penetrated. Note that this support shaft 2G is a rivet, and the tip end thereof is caulked after being penetrated. In this way, each lever 16 is pivotally attached to the re-insertion piece 13 of the board I2 with the direction perpendicular to the insertion direction of the insertion piece 13 as the rotation center axis direction.

The outer peripheral surfaces of both bearing portions 17 of the lever 16 are eccentric cams, and locking protrusions 21 that clamp both protruding pieces 4 of the picture frame frame member 2 together with the insertion piece 13 of the base plate 12, respectively. have. These locking protrusions 21 are located closer to the base of the insertion piece 13 than the central axis of rotation of the lever 16 when the operating part 18 of the lever 16 is in contact with the back surface of the picture frame member 2 on the distal end side of the insertion piece 13. It is located at a position where it comes into pressure contact with the protruding piece 4.

The operating portion 18 of the lever 16 is projected inward so as to reliably contact the protruding piece 4 of the picture frame member 2, and the surface facing the protruding piece 4 is an inclined surface 22.

Next, the operation of the above embodiment will be explained.

To connect a pair of adjacent picture frame members 2 using the connector +1, first, the re-insertion pieces 13 of the substrate 12 are respectively inserted into the grooves 3 of both picture frame members 2 from their end faces.

At this time, the lever 16 is in the upright state, that is, the board 12
Keep it a certain distance away from the text.

Next, with the end surfaces of both picture frame members 2 butted against each other,
By placing a finger or the like on the operating portion of the lever 16, both levers 16 are rotated toward the distal end of each insertion piece 13, and then folded down. Accordingly, as shown in FIG. 3, the locking protrusion 21 of the bearing part 17 of the lever 16 is pressed against both protrusions 4 of the picture frame member 2 from the outside, but as shown in FIGS. As shown, when the operating portion 18 of the lever 16 finally comes into contact with the picture frame frame member 2, the locking protrusion 21 is located closer to the base of the insertion piece 13 than the central axis of rotation of the lever 16.

This prevents the lever 16 from rotating in the opposite direction, that is, in the unlocking direction, and allows the insertion pieces 13 of the base plate 12 and the locking protrusions 21 of the levers 16 to prevent the adjacent picture frame members 2 from collapsing. The pieces 4 are clamped together to vertically lock and connect both picture frame members 2.

At this time, as the lever 16 rotates, the locking protrusion 21 moves toward the end surface of the frame frame member 2, so this frame frame member 2 is pushed toward the other frame frame member 2. As a result, the end surfaces of both jaw edge frame members 2 are easily and reliably butted against each other.

Thus, according to the above configuration, the insertion piece 13 of the board 12
While inserting the lever 16, butt the jaw edge frame members 2 together.
Each picture frame member 2 can be connected by simply rotating and folding down, and this connection can be easily performed with one touch.

Since the connector 11 is composed of only the base plate 12 and the pair of levers 16, the number of parts is small, the structure is simple, and the cost can be reduced. Moreover, the lever 16 is connected to the base plate 12.
Since it is pivoted to the shaft, there is no risk of parts being lost, and it is easy to handle.Coupled with the small number of parts, the connection work becomes even easier.

〔Effect of the invention〕

According to the present invention, there is provided a substrate in which a pair of insertion pieces each inserted into the grooves of a pair of picture frame members are integrated at a predetermined angle, and a pair of levers each having one end pivotally attached to each insertion piece. A coupling device is formed by the lever, and a locking protrusion is formed on the shaft attachment portion of the lever to clamp the protrusion pieces on both sides of the opening of the groove of the picture frame member together with the insertion piece. Since the other end of the insertion piece is in contact with the back surface of the picture frame member on the tip side of the insertion piece, it is located closer to the base of the insertion piece than the pivot axis of the lever and is in pressure contact with the protruding piece, so the coupling The number of parts is small, the structure is simple, it can be made at low cost, it is easy to handle, the frame members can be easily connected, and since only the board needs to be inserted into the groove of the frame frame member, the groove Even shallow and thin picture frame frames can be connected, and when the lever is rotated and the locking protrusion is brought into pressure contact with the protrusion piece, the picture frame member is pressed toward the other picture frame member.
Both jaw edge frame members can be easily connected in a state where their end surfaces are surely abutted against each other.

[Brief explanation of the drawing]

The drawings show an embodiment of the connector for picture frame frame members of the present invention. FIG. 1 is a back view of the frame frame members connected by this connector, FIG. 2 is a back view of only the connector, and FIG. 3 is a longitudinal sectional view showing a state in the middle of the connection work, FIG. 4 is a longitudinal sectional view in a state where the connection is completed, and FIG. 5 is a cross sectional view in the state where the connection is completed. 2. Picture frame frame member, 3. Groove, 4. Protruding piece, I+...
Connector, 12... Board, 13... Insertion piece, 16... Lever, 21... Locking protrusion. 36

Claims (1)

[Claims] (1) A picture frame in which a pair of picture frame members having a groove on the back side and projecting pieces protruding from opposite sides of the opening of the groove are connected at a predetermined angle with their end faces butted against each other. In the component connector, a pair of insertion pieces each inserted into the groove of the picture frame member from the end face of the picture frame member form the predetermined angle and are integrated with the board, and each insertion piece of the board. It consists of a pair of levers each having one end pivoted with the rotation center axis direction in a direction substantially perpendicular to the insertion direction of the insertion piece, and the insertion piece of the board and the insertion piece of the board A locking protrusion is formed that clamps both projecting pieces of the picture frame frame member, and the other end of the lever abuts the back surface of the picture frame frame member on the distal end side of the insertion piece. A connector for a picture frame frame member, characterized in that the connector is provided at a position closer to the base of the insertion piece than the pivot axis of the lever and in pressure contact with the protruding piece.